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Process of producing viscose fiber with bamboo material

A viscose fiber and bamboo technology, applied in the field of textile fibers, can solve the problems of viscose fiber main raw material shortage, damage to ecological balance, and environmental protection

Inactive Publication Date: 2007-10-03
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the raw materials used to produce viscose fiber are mainly hardwood, coniferous wood or cotton. The quantity of viscose fiber has greatly increased, and a large amount of timber needs to be harvested, which not only affects environmental protection and destroys the ecological balance, but also leads to an unprecedented shortage of main raw materials for viscose fiber.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Bamboo materials are selected to be prepared by cutting, crushing and impurity removal, etc., and then the processed bamboo materials are cooked, desanded, concentrated, chloralkaliized, bleached, concentrated, and copied to obtain bamboo pulp. Pulp undergoes primary impregnation, primary pressing, pre-crushing, secondary impregnation, secondary pressing, fine crushing, aging, yellowing, grinding, dissolving, mixing, filtering, defoaming, filtering, spinning, pulling, post-treatment, and drying, packing and other processes to obtain viscose fiber;

[0010] Bamboo material preparation: the specification of bamboo cutting is 30mm;

[0011] Cooking: using alkaline sulfite method for cooking, the alkali rate is calculated as NaOH, which is 18% of the dry bamboo material, the degree of sulfide is 5%, the cooking aid is sodium dodecyl sulfonate, and the dosage is the dry bamboo material 0.8%, the liquid ratio is 1:2; the digester with the bamboo material and the prepared coo...

Embodiment 2

[0021] Preparation step is the same as embodiment one, but each operation production condition is:

[0022] Bamboo material preparation: the specification of bamboo cutting is 50mm;

[0023]Cooking: using alkaline sulfite method for cooking, the alkali rate is calculated as NaOH, which is 22% of the dry bamboo material, the degree of sulfide is 10%, the cooking aid is sodium dodecyl sulfonate, and the dosage is the dry bamboo material 1%, the liquid ratio is 1:3; the digester with the bamboo material and the prepared cooking liquid is cooled for 10 minutes, and the heating time is 20 minutes at a time. The small steam release time is 8 minutes, so that the residual pressure in the digester is normal pressure, the second heating time is 30 minutes, the internal pressure of the cooker is 0.50±0.03Mpa, the second small steam release time is 13 minutes, and the residual pressure is 0.10±0.03Mpa, three times The heating time is 25 minutes, the pressure is 0.75-0.78Mpa, the tempera...

Embodiment 3

[0033] Preparation step is the same as embodiment one, but each operation production condition is:

[0034] Bamboo material preparation: the specification of bamboo cutting is 40mm;

[0035] Cooking: using alkaline sulfite method for cooking, the alkali rate is calculated as NaOH, which is 25% of the dry bamboo material, the degree of sulfidation is 33%, the cooking aid is sodium dodecylsulfonate, and the dosage is the dry bamboo material 3%, the liquid ratio is 1:4.5; the digester with the bamboo material and the cooking liquid is cooled for 12 minutes, and the heating time is 25 minutes at a time. The steam release time is 12 minutes, so that the residual pressure in the digester is normal pressure, the second heating time is 35 minutes, the pressure in the digester is 0.50±0.03Mpa, the second small steam release time is 17 minutes, the residual pressure is 0.10±0.03Mpa, and the temperature is raised three times The time is 20 minutes, the pressure is 0.75-0.78Mpa, the temp...

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Abstract

The process of producing viscose fiber with bamboo material includes the first preparing bamboo pulp with bamboo material and through the steps of preparing material, steaming, eliminating sand, concentrating, chloralkalizing, bleaching, etc; and the subsequent preparing viscose fiber with the bamboo pulp and through the steps of squeezing, ageing, yellowing, grinding, dissolving, mixing, filtering, etc. The process maintains the antiseptic matter in bamboo fiber farthest to make the produced viscose fiber possess antiseptic function, and the produced viscose fiber has also high water washability, high wear resistance and lasting bacteria resistance, and is smooth, cool, fine and bright.

Description

technical field [0001] The invention relates to the technical field of textile fibers, in particular to a method for producing viscose fibers by using bamboo. Background technique [0002] With the improvement of people's living standards, people's demand for textile fibers is increasing, and viscose fibers account for a considerable proportion. At present, the raw materials used to produce viscose fiber are mainly hardwood, coniferous wood or cotton. The amount of viscose has increased greatly, and a large amount of timber needs to be harvested, which not only affects environmental protection and destroys the ecological balance, but also leads to unprecedented tension in the main raw materials for viscose fiber. Natural bamboo is rich in cellulose, and the viscose fiber produced by using it not only has the characteristics of ordinary viscose fiber, but also has antibacterial and antibacterial effects. Therefore, a reasonable method is adopted to utilize bamboo to produce...

Claims

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Application Information

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IPC IPC(8): D01F2/08
Inventor 田素峰刘建华王东
Owner CHTC HELON
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